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Millimeter wave (mmWave) communication has attracted increasing attention as a promising technology for 5G networks. One of the key architectural features of mmWave is the use of massive antenna arrays at both the transmitter and the…

网络与互联网体系结构 · 计算机科学 2018-10-02 Qing Xue , Xuming Fang , Ming Xiao

We consider uplink transmission of a massive multi-user multiple-input multiple-output (MU-MIMO) system in the presence of a smart jammer. The jammer aims to degrade the sum spectral efficiency of the legitimate system by attacking both the…

信息论 · 计算机科学 2015-11-16 Hessam Pirzadeh , S. Mohammad Razavizadeh , Emil Björnson

Millimeter wave (mmWave) band, or high frequencies such as THz, has large undeveloped band of spectrum. However, wireless channels over the mmWave band usually have one or two paths only due to the severe attenuation. The channel property…

信息论 · 计算机科学 2020-04-14 Xi Yang , Chao-Kai Wen , Shi Jin

Millimeter-wave (mmWave) cell-free massive multi-user (MU) multiple-input multiple-output (MIMO) systems combine the large bandwidths available at mmWave frequencies with the improved coverage of cell-free systems. However, to combat the…

信息论 · 计算机科学 2022-07-21 Jannik Brun , Victoria Palhares , Gian Marti , Christoph Studer

Multi-antenna (MIMO) processing is a promising solution to the problem of jammer mitigation. Existing methods mitigate the jammer based on an estimate of its subspace (or receive statistics) acquired through a dedicated training phase. This…

信息论 · 计算机科学 2023-02-10 Gian Marti , Christoph Studer

Analog Beamsteering (ABS) has emerged as a low complexity, power efficient solution for MillimeterWave (mmWave) massive Multiple Input Multiple Output (MIMO) systems. Moreover, driven by the low spatial correlation between the User…

信号处理 · 电气工程与系统科学 2019-02-01 Mohamed Shehata , Matthieu Crussière , Maryline Hélard

Massive MIMO is a variant of multiuser MIMO where the number of base-station antennas $M$ is very large (typically 100), and generally much larger than the number of spatially multiplexed data streams (typically 10). Unfortunately, the…

信息论 · 计算机科学 2016-07-28 Saeid Haghighatshoar , Giuseppe Caire

Wireless communication infrastructure is a cornerstone of modern digital society, yet it remains vulnerable to the persistent threat of wireless jamming. Attackers can easily create radio interference to overshadow legitimate signals,…

密码学与安全 · 计算机科学 2024-12-18 Philipp Mackensen , Paul Staat , Stefan Roth , Aydin Sezgin , Christof Paar , Veelasha Moonsamy

Spatial filtering based on multiple-input multiple-output (MIMO) processing is a promising approach to jammer mitigation. Effective MIMO data detectors that mitigate smart jammers have recently been proposed, but they all assume perfect…

信号处理 · 电气工程与系统科学 2025-01-28 Gian Marti , Flurin Arquint , Christoph Studer

For future networks (i.e., the fifth generation (5G) wireless networks and beyond), millimeter-wave (mmWave) communication with large available unlicensed spectrum is a promising technology that enables gigabit multimedia applications.…

网络与互联网体系结构 · 计算机科学 2018-10-03 Qing Xue , Xuming Fang , Cheng-Xiang Wang

Mobility and blockage are two critical challenges in wireless transmission over millimeter-wave (mmWave) and Terahertz (THz) bands. In this paper, we investigate network massive multiple-input multiple-output (MIMO) transmission for…

信号处理 · 电气工程与系统科学 2020-11-24 Li You , Xu Chen , Xiaohang Song , Fan Jiang , Wenjin Wang , Xiqi Gao , Gerhard Fettweis

Massive multiple-input multiple-output (MIMO) is a key technology for 5G wireless communications with a promise of significant capacity increase. The use of low-resolution data converters is crucial for massive MIMO to make the overall…

信息论 · 计算机科学 2019-02-13 Yavuz Yapıcı , Sung Joon Maeng , İsmail Güvenç , Huaiyu Dai , Arupjyoti Bhuyan

Deploying massive number of antennas at the base station side can boost the cellular system performance dramatically. Meanwhile, it however involves significant additional radio-frequency (RF) front-end complexity, hardware cost and power…

信息论 · 计算机科学 2018-05-09 Zhiyuan Jiang , Sheng Zhou , Zhisheng Niu

All-digital basestation (BS) architectures for millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO), which equip each radio-frequency chain with dedicated data converters, have advantages in spectral…

Delay alignment modulation (DAM) is a novel wideband communication technique, which exploits the high spatial resolution and multi-path sparsity of millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems to mitigate…

信息论 · 计算机科学 2022-11-15 Xingwei Wang , Haiquan Lu , Yong Zeng

This letter investigates the uplink of a multi-user millimeter wave (mmWave) system, where the base station (BS) is equipped with a massive multiple-input multiple-output (MIMO) array and resolution-adaptive analog-to-digital converters…

信号处理 · 电气工程与系统科学 2020-05-19 Hualian Sheng , Xihan Chen , Xiongfei Zhai , An Liu , Min-Jian Zhao

The emerging millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) with lens antenna arrays, which is also known as "beamspace MIMO", can effectively reduce the required number of power-hungry radio frequency (RF) chains.…

信息论 · 计算机科学 2020-08-25 Tian Xie , Linglong Dai , Derrick Wing Kwan Ng , Chan-Byoung Chae

In this paper, we propose a low-complexity beamspace channel denoising algorithm for millimeter-wave (mmWave) massive multi-input multi-output (MIMO) systems with low-resolution analog-to-digital converters (ADCs). The proposed method…

信号处理 · 电气工程与系统科学 2026-05-12 Hanyoung Park , Eunho Kim , Ji-Woong Choi

Millimeter wave (mmWave) communication by utilizing lens antenna arrays is a promising technique for realizing cost-effective 5G wireless systems with large MIMO (multiple-input multiple-output) but only limited radio frequency (RF) chains.…

信息论 · 计算机科学 2016-11-21 Yong Zeng , Lu Yang , Rui Zhang

Millimeter wave (mmWave) communications have been considered as a key technology for next generation cellular systems and Wi-Fi networks because of its advances in providing orders-of-magnitude wider bandwidth than current wireless…

信息论 · 计算机科学 2018-07-04 Zihuan Wang , Ming Li , Qian Liu , A. Lee Swindlehurst